An MMSE based block diagonalization for multiuser MIMO downlink channels with other cell interference

Hakjea Sung, Kyoung Jae Lee, Inkyu Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Citations (Scopus)

Abstract

In this paper, we develop a minimum mean-squared error (MMSE) based block diagonalization (BD) algorithm for multiuser multi-input multi-output (MIMO) broadcast systems where each user has more than one antenna in the presence of other cell interference (OCI). Unlike the conventional BD based multiuser MIMO transmission schemes which suffer from the noise enhancement problem as eliminating all multi-user interference (MUI) completely, the proposed scheme attempts to suppress the MUI with a consideration of the OCI plus noise and employs an additional residual interference suppression process based on an MMSE criterion. As a result, the proposed scheme improves the signal-to- interference-plus-noise ratio (SINR) at each user's receiver compared to conventional BD based schemes. Simulation results demonstrate that the sum rate performance of the proposed algorithm is always better than that of the conventional BD based algorithms for various OCI configurations.

Original languageEnglish
Title of host publicationProceedings of the 2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall
DOIs
Publication statusPublished - 2009
Event2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall - Anchorage, AK, United States
Duration: 2009 Sep 202009 Sep 23

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Other

Other2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall
CountryUnited States
CityAnchorage, AK
Period09/9/2009/9/23

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

Fingerprint Dive into the research topics of 'An MMSE based block diagonalization for multiuser MIMO downlink channels with other cell interference'. Together they form a unique fingerprint.

  • Cite this

    Sung, H., Lee, K. J., & Lee, I. (2009). An MMSE based block diagonalization for multiuser MIMO downlink channels with other cell interference. In Proceedings of the 2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall [5378673] (IEEE Vehicular Technology Conference). https://doi.org/10.1109/VETECF.2009.5378673